And so, with an appropriate fanfare, here's one of the two Design A Bus competition winners - the Capoco entry. I spoke to Alan Ponsford, its principal creator, just before the results were announced. He knew he'd won something but insisted he didn't know exactly what. I'm told he'd been concerned that he'd overdone the technical specifications, but if the words from the podium were anything to go by that seems to be what swung it for him.

The other winner was the Foster Partners handsome effort that I'd been assured by a very authoritative source would not be in the running because it had a glass ceiling which would make it too top heavy. I'm now told that the proposed material is polycarbonate, but would that make the top deck any less like a greenhouse? Does that give a clue to why its rear end and its flooring were singled out for praise rather than other, more conspicuous features?

I left Millbank Tower this morning with the clear impression that the result arose from a pragmatic compromise among the judges. Some, I'm told, were mostly preoccupied with style, others with practicalities. The joint winners appear to reflect this split. Which judges were on which side I can't say with certainty, but I did notice that Kulveer Ranger was wearing a particularly striking tie.

For full details of all winners in all categories click here, for Jonathan Glancey's view clear here, and for an impressive Guardian photo gallery, click here .